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Nostrana [21]
2 years ago
6

Solve the system of equations using Substitution8x + 4y = 12y = -2x + 3

Mathematics
1 answer:
Pachacha [2.7K]2 years ago
4 0

Answer:

Step-by-step explanation:

System of Linear Equations entered :

 [1]           8x+4y=12

 [2]           y=-2x+3

Equations Simplified or Rearranged :

  [1]    8x + 4y = 12

  [2]    2x + y = 3

Solve by Substitution :

Solve equation [2] for the variable  y  

 [2]    y = -2x + 3

Plug this in for variable  y  in equation [1]

  [1]    8x + 4•(-2x+3) = 12

  [1]    0 = 0 =>  Infinitely many solutions

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Progress:
JulsSmile [24]

Answer:

Option (1)

Step-by-step explanation:

Given inequality is.

4x + 5 ≥ 13

We will further solve this inequality,

(4x + 5) - 5 ≥ 13 - 5

4x ≥ 8

\frac{4x}{4}\geq \frac{8}{4}

x ≥ 2

Therefore, on a number line solution of x will be all values of x greater than equal to 2.

Which will be represented by and arrow starting with a solid point from x = 2 directing towards numbers greater than 2.

Option (1) will be the answer.

4 0
2 years ago
Find the value of x.
vredina [299]

Answer:

50

Step-by-step explanation:

8 0
3 years ago
16) Your salary goes from $8.75 an hour at your present job to $16.50 an hour in your new job. What is
Agata [3.3K]

Answer:

The percent change in salary from one job to the next is 88.57%.

Step-by-step explanation:

The previous salary of per hour =  $8.75 per hour

The current salary of per hour  = $16.50 per hour

Change in the salary rate per hour  =  Current salary  -  Previous Salary

                                                             = $16.50 per hour -  $8.75 per hour

                                                             =$7.75 per hour

⇒The change in the salary per hour rate is $7.75

Now, \textrm{Percentage Change in salary}  = \frac{\textrm{Change in the rate of salary}}{\textrm{Previous Salary}}  \times 100

= \frac{7.75}{8.75}  \times 100 = 88.57

or, the change in salary percentage is 88.57%

Hence, the percent change in salary from one job to the next is 88.57%.

4 0
3 years ago
What is 12 2/3 X 2 1/2
vampirchik [111]

Answer:

31.67

Step-by-step explanation:

12 2/3 X 2 1/2

we begin by converting this into improper fractions,

= 38/3 * 5/2

= 95/3

= 31.67

8 0
3 years ago
HELP ME PLAESE ASAP PLAESE TELL ME HOW YOU SOLVED ITT
dolphi86 [110]
I believe it is 960 inches. For the long triangles, I just made them a square so I multiplied base times height. For the small triangles, i did the same thing. Long triangles were 640, small triangles were 320
3 0
3 years ago
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